Ownership Boundary

Shared primitives belong here before downstream packages attach lifecycle law, evidence judgment, recommendation posture, or runtime execution.

Keep It Here When

• the change defines an identifier, schema profile, canonical JSON shape, or deterministic hash rule
• the best proof lives in this package's source tree and tests
• neighboring packages would otherwise fork primitive meaning or migration law

Move It Elsewhere When

• the change mainly alters lifecycle semantics, benchmark truth, evidence posture, recommendation policy, or runtime behavior
• the package becomes a convenience layer for higher-level product logic
• the proof surface is mostly outside shared primitives already

First Proof Check

• packages/bijux-proteomics-foundation/src/bijux_proteomics_foundation
• packages/bijux-proteomics-foundation/tests